Tracheostomy filter



FIG. 1 is a perspective view of first embodiment of a tracheostomy filter;

FIG. 2 is a top view of a first embodiment of a tracheostomy filter;

FIG. 3 is a bottom view of a first embodiment of a tracheostomy filter;

FIG. 4 is a side/profile view of a first embodiment of a tracheostomy filter;

FIG. 5 is a perspective view of a second embodiment of a tracheostomy filter;

FIG. 6 is a top view of a second embodiment of a tracheostomy filter;

FIG. 7 is a bottom view of a second embodiment of a tracheostomy filter; and,

FIG. 8 is a side/profile view of a second embodiment of a tracheostomy filter.

In the drawings, the broken lines are for the purpose of illustrating environment only and form no part of the claimed design. 

CLAIM The ornamental design for a tracheostomy filter, as shown and described. 